{"schemaVersion":3,"id":"CVE-2026-56664","aliases":["GHSA-wxg7-w2v3-w38g","GO-2026-5732"],"status":"published","duplicateOf":null,"title":null,"description":"ZITADEL is an open source identity management platform. Prior to 3.4.12 and 4.15.2, ZITADEL's external JWT Identity Provider validation in internal/idp/providers/jwt/session.go skips the maximum token age freshness check when an incoming token omits the iat claim, allowing arbitrarily old tokens from a trusted issuer to pass authentication. 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